When you buy a can of Diet Coke make sure you enter the code from under the ring pull on Coke Zone Get more from Coca-Cola on Coke Zone

You'll get 2 points plus a £5 voucher for a £20 spend plus the chance to win a £100 voucher in their 30 minute draws.

Codes seem to last a while too - entered one last night and have till 1st June to spend it.

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